Spool.



W. PAIRGHILD.

SPOOL.

APPLICATION FILED DEC. 18, 1911.

Patented Sept. 16, 1913.

I WITNESSES Y I INVENTOR M 72% 0 mm Jae M WASHINGTON n c WILLIAM FAIRGI-IILD, OF ALBANY, NEW YORK.

SPOOL.

Specification of Letters Patent.

Patented Sept. 16, 1913.

' Application filed December 18, 1911. Serial No. 666,358.

L or roller which may be stamped out of one piece of material, andbent into form andsecured in position quickly and economically,

together with such other elements and combinations as are hereinafter more particularly described and claimed. I accompl sh this ObJQCt by means of the mechanism lllus- .trated in the accompanying drawings, in

which: 7

Figure 1 is a plan ofa spool blank. Fig. 2 is a plan after the spool has been bent, during the process of being formed in position for use. Fig. 3 is an end elevation of the spool, during its construction, shown in plan in Fig. 2. Fig. A isa plan of a completed spool. Fig. 5 is an end elevation of a completed spool. Fig. 6 is a plan of a modified form of spool blank. Fig. 7 is a plan of a completed spool'shown in modified form in Fig. 6. Fig. 8 is an end elevation of second modified form. Fig. 9 is a plan of an extended spool.

Similar letters refer to similar parts throughout the several views.

In order to construct a spool or roller, especially those adapted for carrying a ribbon for a typewriting machine, it is advisable to use thin flexible material, such as tin, which may be easily extended out in the form desired and may be bent quickly and easily to the desired position. Spools used for carrying type writer ribbons and for similar purpose are usually provided with a small portion, centrally disposed, between two wider ends, to which smaller portion the ribbon is attached and about which it is wound.

In Fig. 1 I show a blank stamped out of a thin piece of metal. The circular portions, A and B, are each connected by thin narrow bands, C and D, to a centrally disposed portion, E, which extends at about right angles to the bands, G and D, and which preferably has at its extreme ends spurs, e, b, and also the locking projections, 03, at. There is preferably cut an opening, F, through the center of each of the circular portions, A and B, and there may be several openings, 7", through the circular portions A and B, for the purpose of ornamentation or to reduce the amount of material therein.

In order to bend the blank shown in Fig. 1 into the position required I first cause the blank to assume the position shown in Fig. 2, in which the circular portions, A and B, are bent upon the bands 0 and D, respectively, and the bands, C and D, are bent to nearly parallel the portions A and B, and the portion E is bent upon itself, the ends caused to approach each other, to occupythe position shown in Fig. 2 and in elevation in Fig. 3. I then press the bands, 0 and D, closely against the circular portions A and B, respectively, and lock the portions A and B and E together, by caus ing the ends of the portion E to project through the openings 20 in the portions A and B and then turning them over to form a bead in connection with the circular portions A and B, as shown at 21 on Fig. 5. The spool then assuming the position shown in plan in Fig. 4; and end elevation in Fig. 5.

An opening will be found through the spool, passing through the openings, F, in the circular portions, and that formed by the bending of the portion E will be between the ends of the spool. Through the opening, F, any rod, post or bolt may pass, if desired, in the manipulation of the spool.

In Figs. 3, 4, 5 and 7, I show embossed portions 22, which may be placed there for strengthening the sides of the spool.

In Fig. 6 I show simply another form of a blank. The central portion, H, being provided with a somewhat serrated edge, 7L, 17b, and the circular portions provided with lips, J, J, so that when the portions, J, J, are bent in the manner already described in reference to Figs. 2, 3 and 4:, the circular part, H, will be provided with the openings, 7', as shown in Fig. 7, and the projecting lips, J, J, will be bent to engage the interior surface of the portion H when that portion has been bent into position for use, as shown in Fig. 7

In Fig. 8 I have shown a modified'form in which the enlarged end portions, K, are six sided, instead of circular, provided with a square opening, L, instead of circular, as shown in previous figures.

In Fig. 9 I have shown the spool constructed as described in reference to Figs.

manner of locking them in position.

What I claim as my invention and desire to secure by Letters Patent is:

1. A spool formed from a single piece of material; the enlarged ends connected by a narrow band with a centrally disposed enlarged portion; bands and ends bent so that the bands will lie against the ends and the centrally disposed portion bent to form a shank and locked together between the ends, substantially as described.

2. A spool formed from a single piece of material, having at each end and midway between the ends enlarged portions with narrow bands connecting the central with of material provided With circular flanges at each end with an enlarged center mem ber; narrow bands connecting said central member to each circular flange, substans tially-as described. 7

In testimony whereof I'have 'aiiixed my signature in 'presence o'f two Witnesses.

WILLIAM FAIROHILD,

lVitnesses: r Loj'rrm Pinon,

, Brena Galena Copies of this patent may be obtained for live cents each, by addressing' the :Qommissioner f Batefit; 7 Washington, D G." i 

